5. When you sit down, try to get into a position where you can keep your feet flat on the floor. Don't cross your legs (because that constricts the veins and makes it difficult for blood to get back through the constricted vessels), and avoid sitting with your legs hanging freely over the edge of a chair. (Don't sit on the edge of the table, for example. It compresses the underside of your thighs and stops the circulation).

6. Do regular but gentle exercises. The best types of exercise are walking, swimming and cycling. Don't exercise until you are exhausted or in pain. But do try to make sure that you take some exercise every day.

Teacher: MichaelMany articles taken from 'A word with the doctor', by Dr. John Windsor.